Information for this chart was taken from various sources, often containing conflicting dates. This information should be taken as a guide and should be verified by contacting the county and/or the state government agency.

For a complete list of populated places, including small neighborhoods and suburbs, visit Hometown Locator.
The following are the most historically and genealogically relevant populated places in this county:[8]

Before North Dakota was a state in 1889, parts of North Dakota were included in the 1836 Iowa Territory census (also known as Wisconsin Territory), 1840 Iowa Territory census, 1850 Minnesota Territory census, and the 1860-1880 Dakota Territory censuses.[9] See links listed below.

Federal Censuses were taken for the state of North Dakota starting in 1890, although no records survived. The 1900 Census is the next Federal Census available. For links to Federal census indexes, see North Dakota Census.

When the United States acquired North Dakota, most of the land became available for homesteading or purchase from the federal government. After land was transferred from the government to private owners, the registrar of deeds in each county recorded the land transactions in the form of deeds and mortgages. For more information, see North Dakota Land and Property.

U.S. Newspaper Directory, 1690-Present on Chronicling America - contains a list of all known newspapers and the dates they cover; once you locate a newspaper name, contact the local library to see if they have copies of the newspaper

Birth, marriage, death, and divorce records may be recorded on registers, certificates, or other documents at the county clerk's office. Many records are also being digitized and put online. See North Dakota Vital Records for more information about availability and how to access them.